Though pituitary adenomas are benign , they can produce problems either from a mass effect ( usually visual problems from pressing on the optic chiasm and / or headaches ) or from production of hormones such as prolactin or acth 尽管垂体腺瘤是良性的，但也能引起肿块压迫的后果：因压迫视交叉引起视力障碍、 、头痛、产生催乳素acth等。
